Chair armrest



FIG. 1 is a front elevational view of a chair armrest, showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top front right perspective view thereof;

FIG. 8 is a top rear right perspective view thereof;

FIG. 9 is a bottom rear perspective view thereof;

FIG. 10 is a top part perspective view thereof; and,

FIG. 11 is another top part perspective view thereof. 

CLAIM The ornamental design for a chair armrest, as shown and described. 